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120342069 = 32115311597
BaseRepresentation
bin1110010110001…
…00011000110101
322101110000021200
413023010120311
5221301421234
615535203113
72660614341
oct713043065
9271400250
10120342069
1161a25861
1234376499
131bc16833
1411da8621
15a871d99
hex72c4635

120342069 has 12 divisors (see below), whose sum is σ = 173993196. Its totient is φ = 80151552.

The previous prime is 120342059. The next prime is 120342073. The reversal of 120342069 is 960243021.

It can be written as a sum of positive squares in 2 ways, for example, as 100761444 + 19580625 = 10038^2 + 4425^2 .

It is not a de Polignac number, because 120342069 - 213 = 120333877 is a prime.

It is a super-2 number, since 2×1203420692 = 28964427142401522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120342059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4579 + ... + 16175.

It is an arithmetic number, because the mean of its divisors is an integer number (14499433).

Almost surely, 2120342069 is an apocalyptic number.

It is an amenable number.

120342069 is a deficient number, since it is larger than the sum of its proper divisors (53651127).

120342069 is a wasteful number, since it uses less digits than its factorization.

120342069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12756 (or 12753 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 120342069 is about 10970.0532815479. The cubic root of 120342069 is about 493.7106450713.

The spelling of 120342069 in words is "one hundred twenty million, three hundred forty-two thousand, sixty-nine".

Divisors: 1 3 9 1153 3459 10377 11597 34791 104373 13371341 40114023 120342069